Clamp



July 5. 1921. 1,634,834

c. a. E. JQHNSON cum? Filed Jan. 25, 1926 w INVENTDR.

v c0121. .5 JOHNSON By r" A no MEX.

-Pa tented July 5, 1927'.

CARL G. n. JOHNSON, 01? Los nn'ennns, o'niil'ronlvm.

Application filed m ar 'z s; 1232a Serial no. 83,498.

My invention relates to clamps, and more particularly to devices for securely holding a scraper blade in position so that it may be sharpened.

As is well known, the blades used in connection with floor scrapers frequently require sharpening, and so far as 1 am aware no devicehas heretofore been proposed for holding said blades in position so that they may be sharpened. w I j I t accordingly is an object of my invention to provide a novel form of device com p'rising a set of stationary and movable members for firmly holding a floor scraper blade in position so that it may be sharpened, a

suitable base, equipped with an adjustable support, if desired, being provided to hold said base in convenient position, a preferably spring-pressed means being associated with at least one of said members for ac commodating blades of different sizes, and for holding and releasing said blade.

A further object of my invention is to provide a novel form of device which is simple in character, easy and inexpensive to manufacture, composed of a minimum number of parts, and one which will thoroughly and reliably effect the objects intended.

Further objects and advantages of my-invention will become more apparent as the description thereof proceeds.

Reference is bad to the accompanying drawings, in which similar reference characters denote similar parts. In the 'drawings,

Fig. l is a top plan view of my invention,

Fig. 2 is a transverse cross-sectional view on the line 22, Fig. 1,

Fig. 3 is a longitudinal cross-sectional view on the line 33, Fig. 1, but of a slightly modified form of my invention,

Fig. 4. is a transverse cross-sectional view on the line 44, Fig. 1,

Fig. 5' is an end elevational view of the form of my invention depicted in Figs. 1, 2 and 4, showing the device in position so that the blade may be sharpened, and

Fig. 6 is a longitudinal cross-sectional view of a modified form of my invention.

,Describing my invention more in detail, my improvement comprises a base 1 of any preferred configuration and material, such as wood, cast iron, pressed material or the like, and in the form shown in Figs, 1-5

equipped with a cut-out or bored portion 2,

which portion is adapted to house a movable member or jaw 3 provided'with a cut-away or bent portion a to be engaged by the blade 5 to prevent said blade from slipping; The U jaw 3' may be formed of any material in practice found desirable.

Mounted upon the base 1 by any means preferred, such, for example, asby ordinary screws or bolts 6, is a plate 7 of any desired configuration, and material, said plate being equipped with a stationary aw or member 8 bent over from the plate 7, or associated therewith in any manner desired. If preferred, also, the jaw 8 may be constructed 7o like the jaw 3. The jaws 3 and al coact to hold the blade 5 firmly in position so that said blade may be sharpened. i

To provide for adjustability, and to accommodate blades of" different sizes, a rod or other reciprocating member 9 is positioned in a bored portion 10, said rod being screw-threaded as at 11 to accommodate a ring-nut 12 or other device for adj usting and securingpurposesl The rod 9 is provided 30 with ahead 13 to engage with the movable and positioned between one wall of the cavity or cut-out portion 2' and the jaw Sis a helical spring 14, which spring holds the jaw 3 in resilient relation with the blade 5, and thus; functions to accommodate blades of different sizes.

Asseen-more-particularly in Figs. 2, 4E and 5, the base 1 may be equipped with an adjustable or pivoted support 15', provided with an element 16, to engage with the base 1 to prevent the device from slipping. The support 15 may be omitted, if desired, as shown in Fig. 3.

. In the form of invention depicted in Fig.

3, the elements 1, 2, 3, 4, 5, 7, 8, 9, 10', 11', 12', 13, l l are precisely formed as previously described in connection with the other form of my invention, and ac"-v cordingly the description thereof need not be to abut against the jaw 3", which jaw is also proviclml with a. cutaway portion 4:" funeiioning as; previously explained. A helical sp ing ill is positioned between the device 6 and die jaw ii. also for a purpose previously described. The threads 11 are 1)i.'() yided to .me engaged by the wing-not 12. The jaw El moves; in an opening 2 con i'espomling with the cavity 2 oi. the other form of my inveni'ion. The blade 5" is posiiioned lielween the r-l'aiionai'y jaw R as in the other form o 5' my invention.

in operation. i'he wing" 11111 on eithei? form is loosened. peilnill'imgg ilie movahle jaw liy reason of ihe aeiion oi? The spring to move away 'l'iom i'he i i-aiiona 1' jaw. and lhe scraper hi: do is ihen inserted heiweeii i'lie jaws: and ilie vine; mii. -:ei'ewed homo. II? the ailp ioi'i 15 is osedi ii is opened up. and by applying the iiowtm'e oi? iho opmal'oro lmoe to (he hase. ihe lllllkli} may QilFBll) he sharpened by applying a ilai' lilo or other sharpening means lo the eullimz; end of said lilade liy ILUllil'liiiil iog aid Iile 0i Fillil who 1-11-- oiling: mains over ihe editing: end oi' said blade. in the form ol' my inveolioii deoil-led in Fig. the base i in merely placed upon the llooi'. or in any oihei' ((ilHOTilLiii' place. and ihe hlade sharpened.

\Vhile l have thus (.l0(f1ll.i(?(l my inventioi'i with QQIOfll' Pilll'lCUlilIll). ii" will lie (-leai limit it may be modified ialn'on eghont a wide range. I aeeol'dingigly do nol: propose io he limii'ed lo i'he exaeia deiaila oil eonaiii'nel'ion shown and do oiilied but TOLQOI'VG the right in practice to make any and, all moi'lilieal' ions thereof lhaiz fall. within ijlie 5 00130 of ihe appended claims.

I claim as my invenl'ion:

'i. in a. clamp for se 21PM blades, in eomlilllillilfiila base. a plate of substantial length and widi'h positioned on said base, one end o-l' id platheing' upturned to form a sta l'ionai'y jaw, a movable jaw extending up wardly through said opening): and poeiiioned wilhin aaid hole and adapted for movement relative io .illfil lixed jaw, and a resiliently moimi'ed adjmai'alile means associated with. said liase and said movahle jaw \Vlitl'QlJjJ 2 scrape:- blade may he adjoatalily held lielfiu'llil Silld jaw.

i. vlamp For holding w -apei hlades so lhai; ihey may lie sharpened (*onipi'ioing' a lmae. an liiilfl'liil hlade holding I'liOiHliOi oi. enheiaoiial lenoi'h and widi'h posiiiioi'ied on said haw. a aiiai'ionai'y jaw on one end oi s-aid iiliiillWl'. ihe oihei end of said memliei' heme: movidi'vd wiih on. o ioiiing. a mo able jaw ada iied lo he ieoipi'iwiied in eaid opening); and eoai-i will] Hillll riotionai'y jaw to hold a :aei'apei l lade in lined posiiion, an adjiisiali o means; i'oi" :eaiil movable jaw iifee l'i m raid ilaiionaei' jaw. and aliillmeillj on said haw. and a i(i-llll 'ill memhei a1- 'ociai1erl with aaid adjusd'alile moana and. posil'ioned laeiweeo :aid tlli iiiiwlli and said moval'ile jaw in? holding raid :oovahle jaw under ionsion.

Ii. ,i clamp i'oi' rai'ai' ei liladeia eompi'isingii; a lam-.1 lllilll'. holding meiilliei' on said haee, a i-ziaiionaiy jaw on one end of 5 id memliiei' and porii ioned lieiiweeo the ends o'l" said base, waid memheiheim: provided wiih an opening neai' iis ()l'liOlf end, a. mo al'ile jaw adapted i'oiiilziliW. nmvemenl with said stationary jaw in maid opening. an adjaaiing deviee assoiialed with said have and said movz hle jaw loilimiting: ilie moi'ea'lonii of f-flld movalile jaw. plural means iiHkTOiiliil'Oi'l with SillKl liaao iioiiai ipoiiing Ffllll adjiioizing device, and a apringr on said (lUVlL'Q l'or holding said nioialile jaw under lei'iaion. one oi? said plui-al means iiimei'ioningi as an almliment for said spring.

in testimony whereof l have .i-iignerl my name to this speeili -aiiion.

CARL i, E. JOHNSON.

ill 

